/Engine/Plugins/Experimental/GeometryCollectionPlugin/Source/GeometryCollectionEditor/Public/GeometryCollection/GeometryCollectionThumbnailScene.h
Sets the geometry collection to use in the nextCreateView()
void SetGeometryCollection ( [UGeometryCollection](API\Runtime\GeometryCollectionEngine\GeometryCollection\UGeometryCollection) * GeometryCollection )